The Lying Room by Nicci French

 

Neve is a mother, a wife, a great friend and great at her job. Everyone loves Neve  and confides in her. But Neve has a secret that she is sure no one knows about - not her husband, her children, or her closest friends. When Neve gets a text to visit her boss, Saul, early one morning, she arrives to find him murdered. The only problem is that Neve doesn't call the Police or an ambulance, she cleans up the flat instead. The lies soon spiral out of hand with Neve not sure who to trust or who she is protecting. A great story, which you won't want to put down.